Instruction Manual

Chapter 8 PFI

Exporting Timing Output Signals Using PFI Terminals

You can route any of the following timing signals to any PFI <6..9>

terminal.

• AI Convert Clock*

• AI Hold Complete Event

• AI Reference Trigger

• AI Sample Clock

• AI Start Trigger

• AO Sample Clock*

•AO Start Trigger

• Counter n Source

• Counter n Gate

• Counter n Internal Output

•Frequency Output

•PXI_STAR

•RTSI<0..7>

Note Signals with a * are inverted before being driven to a terminal.

Using PFI Terminals as Static Digital Inputs and Outputs

When a terminal is used as a static digital input or output, it is called P0.x

or P1.x. On the I/O connector, each terminal is labeled PFI x/P0.x or

PFI x/P1.x.

Connecting PFI Input Signals

All PFI input connections are referenced to D GND. Figure 8-3 shows this

reference, and how to connect an external PFI 0 source and an external

PFI 2 source to two PFI terminals.